TCP/UDP Port Finder

Enter port number (e.g. 21), service (e.g. ssh, ftp) or threat (e.g. nimda)
Database updated - March 30, 2016

Search results for "wiki"

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Port: 37/UDP
37/UDP - Known port assignments (4 records found)
  • Service
    Details
    Source
  • time
    Time
    IANA
  •  
    TIME protocol (Official)
    WIKI
  • threat
    [threat] Dimi
    Bekkoame
  • threat
    [threat] W32.Sober
    Bekkoame
Port: 39/TCP
39/TCP - Known port assignments (5 records found)
  • Service
    Details
    Source
  • rlp
    Resource Location Protocol
    IANA
  •  
    Resource Location Protocol (RLP) - used for determining the location of higher level services from hosts on a network (Official)
    WIKI
  • threat
    [threat] Upfudoor
    Bekkoame
  • subsari
    [trojan] SubSARI
    SANS
  • trojan
    [trojan] SubSARI. Remote Access / Keylogger / Steals passwords / FTP server. Works on Windows 95, 98 and ME. Aliases: Backdoor.SubSARI
    Simovits
Port: 39/UDP
39/UDP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • rlp
    Resource Location Protocol
    IANA
  •  
    Resource Location Protocol (RLP) - used for determining the location of higher level services from hosts on a network (Official)
    WIKI
  • threat
    [threat] Upfudoor
    Bekkoame
Port: 42/TCP
42/TCP - Known port assignments (4 records found)
  • Service
    Details
    Source
  • nameserver
    Host Name Server
    IANA
  •  
    ARPA Host Name Server Protocol (Official)
    WIKI
  •  
    Windows Internet Name Service (Unofficial)
    WIKI
  • threat
    [threat] W32.Dasher
    Bekkoame
Port: 42/UDP
42/UDP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • nameserver
    Host Name Server
    IANA
  •  
    ARPA Host Name Server Protocol (Official)
    WIKI
  •  
    Windows Internet Name Service (Unofficial)
    WIKI
Port: 43/TCP
43/TCP - Known port assignments (3 records found)
  • Service
    Details
    Source
  • nicname
    Who Is
    IANA
  •  
    WHOIS protocol (Official)
    WIKI
  • whois
    nicname
    SANS
Port: 47/TCP
47/TCP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • ni-ftp
    NI FTP
    IANA
  •  
    NI FTP (Official)
    WIKI
Port: 47/UDP
47/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • ni-ftp
    NI FTP
    IANA
  •  
    NI FTP (Official)
    WIKI
Port: 49/TCP
49/TCP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • tacacs
    Login Host Protocol (TACACS)
    IANA
  •  
    TACACS Login Host protocol (Official)
    WIKI
Port: 49/UDP
49/UDP - Known port assignments (2 records found)
  • Service
    Details
    Source
  • tacacs
    Login Host Protocol (TACACS)
    IANA
  •  
    TACACS Login Host protocol (Official)
    WIKI
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About TCP/UDP ports

TCP port 37 uses the Transmission Control Protocol. TCP is one of the main protocols in TCP/IP networks. TCP is a connection-oriented protocol, it requires handshaking to set up end-to-end communications. Only when a connection is set up user's data can be sent bi-directionally over the connection.
Attention! TCP guarantees delivery of data packets on port 37 in the same order in which they were sent. Guaranteed communication over TCP port 37 is the main difference between TCP and UDP. UDP port 37 would not have guaranteed communication as TCP.
UDP on port 37 provides an unreliable service and datagrams may arrive duplicated, out of order, or missing without notice. UDP on port 37 thinks that error checking and correction is not necessary or performed in the application, avoiding the overhead of such processing at the network interface level.
UDP (User Datagram Protocol) is a minimal message-oriented Transport Layer protocol (protocol is documented in IETF RFC 768).
Application examples that often use UDP: voice over IP (VoIP), streaming media and real-time multiplayer games. Many web applications use UDP, e.g. the Domain Name System (DNS), the Routing Information Protocol (RIP), the Dynamic Host Configuration Protocol (DHCP), the Simple Network Management Protocol (SNMP).
TCP vs UDP - TCP: reliable, ordered, heavyweight, streaming; UDP - unreliable, not ordered, lightweight, datagrams.
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